cbg, I just talked to Assurant TODAY about this very subject.
Bottom line, 1099 workers are allowed on a group's health plan, provided they meet some criteria. They remain as 1099 workers. At least this is the case with Assurant. Other carriers, I have no idea.
Perhaps you should call them.
According to the IRS link posted, simply receiving benefits, per se, does not make one a W2 employee. It MAY, bit it is not absolute.
If that were the case, then one could surmise that one who does NOT receive any benefits is NOT an employee, and that's not true either.
The funny thing about this whole conversation in, I've mentioned an IRS law that allows you to do better on you're own, and the peanut gallery dismisses it as some kind of "loophole" or fraud. Then, when someone else has a question about something, they refer to an IRS code that is at best ambiguous, and defend their argument with it as solid rock testimony to their statements.
It's madness.
Here is the EXACT verbage, regarding benefits, that was posted in the pdf link:
"If you receive benefits such as insurance, pensions, or paid leave, this is an indication that you MAY BE an employee. If you do NOT receive benefits, you could be either an employee or an independent contractor."
There is not absolute based on "insurance". The carrier can decide who they will allow and at least Assurant has allowed 1099 workers to join a W2 group plan, provided there is at least one W2 person on the plan, and the 1099 workers meet some other criteria.
Right from the IRS... MAY BE an employee. MAY. Where is this shown to be a primary factor? Just because most people on group plans are employees, doesn't mean that ALL people on a group plan are employees. Either way, in a year or so, it won't matter, since "group health" is going to go away, as it should.